Justin Bieber Under Investigation for Assault with a Nerf Gun

Justin Bieber is in hot water again. The teen heartthrob is under investigation for assault - though not exactly with a deadly weapon. The object in question? A Nerf gun.

According to TMZ, a female employee of an Ottawa, Canada venue where Bieber was performing last November filed a police report that claimed she was hit by something and that Bieber or someone in his entourage assaulted her.